CVE-2026-25189

Windows DWM Core Library Elevation of Privilege Vulnerability

CVE-2026-25189 is fixed in 12 products on 1 platform, first by KB5078752, released March 10, 2026. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

7.8

Important

Exploitation

None reported

Exploitation Less Likely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0038

31st percentile

<p>Use after free in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.</p>

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows 10 Version 1809 for 32-bit Systems	17763.8511	KB5078752	Mar 10, 2026
Windows 10 Version 1809 for x64-based Systems	17763.8511	KB5078752	Mar 10, 2026
Windows 10 Version 21H2 for 32-bit Systems		KB5078885	Mar 10, 2026
Windows 10 Version 21H2 for ARM64-based Systems		KB5078885	Mar 10, 2026
Windows 10 Version 21H2 for x64-based Systems		KB5078885	Mar 10, 2026
Windows 10 Version 22H2 for 32-bit Systems		KB5078885	Mar 10, 2026
Windows 10 Version 22H2 for ARM64-based Systems		KB5078885	Mar 10, 2026
Windows 10 Version 22H2 for x64-based Systems		KB5078885	Mar 10, 2026
Windows Server 2019	17763.8511	KB5078752	Mar 10, 2026
Windows Server 2019 (Server Core installation)	17763.8511	KB5078752	Mar 10, 2026
Windows Server 2022	20348.4893	KB5078766	Mar 10, 2026
Windows Server 2022	20348.4830	KB5078737	Mar 10, 2026
Windows Server 2022 (Server Core installation)	20348.4893	KB5078766	Mar 10, 2026
Windows Server 2022 (Server Core installation)	20348.4830	KB5078737	Mar 10, 2026

Details

Published
March 10, 2026
Weakness
Use After Free
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25189

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